2012年1月5日星期四

Cadmium Applications


Cadmium
 Cadmium has many common industrial uses as it is a key component in battery production, is present in cadmium pigments,coatings,and is commonly used in electroplating.Cadmium is a soft, malleable, ductile, bluish-white divalent metal. It is similar in many respects to zinc but forms complex compounds.Cadmium electroplating, consuming 6% of the global production, can be found in the aircraft industry due to the ability to resist corrosion when applied to steel components. This coating is passivated by the usage of chromate salts.
Cadmium is used as a barrier to control neutrons in nuclear fission.The pressurized water reactor designed by Westinghouse Electric Company uses an alloy consisting of 80% silver, 15% indium, and 5% cadmium.Cadmium oxide is used in black and white television phosphors and in the blue and green phosphors for color television picture tubes.Cadmium sulfide (CdS) is used as a photoconductive surface coating for photocopier drums.Cadmium is a component of some compound semiconductors, such as cadmium sulfide, cadmium selenide, and cadmium telluride, which can be used for light detection or solar cells.
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